Summary of Significant Accounting and Reporting Policies (Tables)

12 Months Ended

Jul. 31, 2016

Accounting Policies [Abstract]

Schedule of numerators and denominators used in basic and diluted EPS calculations

The following table reconciles the numerators and denominators used in the basic and diluted EPS calculations:

	Fiscal Years Ended July 31,
	2016			2015	2014
Numerator:
Net (loss) income for basic calculation	$	(7,738,000	)	23,245,000	25,151,000
Effect of dilutive securities:
Interest expense (net of tax) on 3.0% convertible senior notes	—			—	3,394,000
Numerator for diluted calculation	$	(7,738,000	)	23,245,000	28,545,000
Denominator:
Denominator for basic calculation	16,972,000			16,203,000	15,943,000
Effect of dilutive securities:
Stock-based awards	—			215,000	254,000
Conversion of 3.0% convertible senior notes	—			—	4,709,000
Denominator for diluted calculation	16,972,000			16,418,000	20,906,000